Answer: x = 25%
Step-by-step explanation: 45% + 30% = 75%
75% + 25% = 100%
There will be a 25 grams left after 3240 years.
The half-life of Radium-226 is 1620 years. If we divide 3240 by 1620 the answer is 2. So that means the amount of Radium-226 will divide in half twice.
100 / 2 = 50 / 2 = 25
Step-by-step explanation:
Slope: −2
y-intercept: (0,1)
Answer:
Answer:
9 mins and 8 secs
Step-by-step explanation:
Answer:
33. 224
34. 128
35. 244
36. 160
Step-by-step explanation:
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